It can be rather tricky introducing user interface improvements to a big old piece of SaaS. Let's take a look at how you can improve your UI with the least amount of disruption.
It's difficult to develop a system for deciding which features to introduce into your product. Here's a general process to help you achieve this more effectively.
Signing up, finding information, making a payment, understanding how to use your product... These processes should be intuitive for your users. If they're not, you could be letting your product down.